Condensing



(No Model.)

J. E.1\10W1LL1A1\1. CONDENSING ROLL FOR WOOL GARDING MACHINES. 'No.511,641.

Patented Dec. 26,1893.

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Unites States PATENT @rricn.

JAMES E. MCIVILLIAM, OF HUBBARDSTON, MASSACHUSETTS.

CONDENSING=ROLL FOR WOOL CARDING MACHINES.

SPECIFICATION forming part of Letters Patent No. 511,641, dated December26, 1893. Application filed December 12,1892- Serial No. 154.893- (Nomodel.)

To all whom it may concern:

Be it known that 1, JAMES E. MOWILLIAM, of I-Iubbardston, county ofiVorcester, State of Massachusetts, have invented an Improvement inCondensing-Rolls for WVool-Oarding Machines, of which the followingdescription, n connection with the accompanying drawings, 1s aspecification, like letters on the drawings representing like parts.

In United States Patent No. 47 2,7 40, granted to me April 12, 1892, acondensing roll is 1 shown, the working surface of which consists of ahard twisted cord closely wound thereon spirally from end to end andsuitably secu red to the roll.

This invention has for its object the production of a condensing rollhaving a better working surface and of greater extent than that shown insaid patent, and is an improve ment on the construction therein setforth.

Figure 1, in side elevation and partly in section shows a condensingroll embodying my invention; and Fig. 2, is a left-hand end Viewthereof.

My invention relates to the covering for condensing rolls, and the samemay be applied to any usual or well known form of condensing roll.

In carrying out my invention, I take the condensing roll a, and connectthereto near one end, as herein shown in dotted lines Fig. 2, by a pluga, one end of a large twisted or hard-spun cord b, and adjacent to thecord I secure one end of a small metallic wire 0, preferably copper, tothe roll, and wind the wire and cord closely about the roll from end toend thereof, as best shown in Fig. 1, the opposite ends of the cord andwire being secured to the roll in any suitable manner. The workingsurface of the roll thus presents a series of large spiral ribs orcorrugations which alternate with a wire wound in a spiral parallelthereto whereby adjacent ribs or corrugations of cord are separated anda larger and more irregular surface is obtained to rub the rovings orslubbings than would be the case if the wire were omitted and the cordThe wire a not only serves wound closely.

to separate the ribs or corrugations of cord, but also to retain thesame in place and prevent the cord slipping on the roll.

I find it advantageous to coat the surface of the roll with some varnishd having considerable body, in which to embed the cord and prevent anymoisture getting through to the surface of the roll.

I do not desire to restrict myself to any particular size or compositionof cord, nor to a copper wire, as the same may be varied withoutdeparting from the spirit of my invention.

I claim- 1. A condensing roll having an outer surface composed ofalternate ribs or corrugations of fibrous and metallic material arrangedin parallel spirals about the roll, the fibrous ribs or corrugationsbeing of greater diameter, substantially as described.

2. In a condenser roll for carding engines, the combination with theroll, of an outer covering, said outer covering consisting of parallelstrands of unequal size wound around the surface of said roll andattached thereto, and forming a series of transverse corrugations uponthe outer surface of the roll, sub stantially as described.

3. In a condenser roll for carding engines, the combination with theroll, of an outer covering therefor composed of two series of contiguousribs or projecting portions extending circumferentially about the rolland secured thereto, each rib or projection of one series separated fromthe adjacent rib of the same series by a different sized rib orprojection of the other series, thus forming trans verse corrugations orundulations upon the outer surface of the roll, substantially as and forthe purpose set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

JAMES E. McWILLIAM.

Yt itnessesz ALFRED O. MURDOCK, CHARLES H. PHILBRICK.

